Mold.



PATENTED FEB. 12, 1907.

J. V. BOLAND.

MOLD.

APILIOATION FILED rssuzs, 1906.

2 SHEETS-SHEET 1.

' \PATENTED FEB. 12,

J. v. BOLAND.

MOLD. APPLICATION FILED FEB. 26, 1906.

2 SHEETS-SHEET 2.

ome).

JOHN BOLAND, OF ST. LOUIS, MISSOURI.

Specification of Letters Patent.

Patented Feb. 12, 1907.

Application filed February 26, 1906. lt-rial No. 302.967.

To all full/m it may cancer! N I Be it knownthat I, JOHN V. Bonixn, a

l citizen of the United States, residing at St.

Louis, Missouri, have invented a new and useful 'Mold, of which the following is a sp ecification.

This invention relates to molds, and more especially to those molds that are used in the erection-of concrete and other molded struction, combination, andarrangement of the coo crating devices herein fully shown, de-

scri ed, and claimed.

One object of this invention is to produce a mold for forming the complete surface of the wall of any i'n'closure, which shall consist of a molds each composed o a number of sepa rable sections having couplings whereby they may be fastened together to form the desired wall-surfaceand means for operating thecouplings to unite and release the sections as required for convenient use of the invention.

Referring to the accompanying drawings, which form a part of this specification, Figure-l is a sectional view of a concrete chim ney being constructed or formed by -use of the mold constituting my invention, the several molds being shown in )osition. Fig.2 is

a view showing the sprea ing device for the interior molds. Fig. 3 is a view showing the couplings for the exterior molds. Fig. 4 is a side view of the coupling for the exterior molds. Fig. 5 is a perspective view of the rod or shaft forming a part of the coupling. Fig. 6 is a sectional view showing the spreading device for the interior molds. Fig. 7 is a detail view of the bearing for the coupling rod or shaft. Fig. 8' is a sectional vi ew thereof taken along the line a a of Fig. 7.

These molds are designed particularly for 'use in building concrete chimneys, and consist of a mold for forming the interior surface of the wall ofthe chimney, a mold for forming the exterior surface of the wall of the chimney, and two molds for forming the air-space within the chimney-wall, so that there will be in reality two concentric walls; The

mold for forming the exterior surface of the V rods 2. tures; and it consists -of the novel construcouter wall consists of a series of arcuate sections 1, which when set edge to edge form an annular mold, as shown in Fig. 1. Each a1- ternate section carries a vertical rod or shaft 2 near each edge mounted in'bearings 3, and the remaining sections carry eccentric curved hooks 4, which when the sections are set edge to edge, as shown in Fig. 3, reach round the U on the 11 per end of each of said rods 2 is a over 5, w iereby said rods may be turned or rotated in their bearings; At intervals on the rods 2 and in position to engage with the eccentric hooks 4 are projections 6, so that when the sections are placed edge to edge and the rods are turned said projections 6 by engaging the hooks 4 will draw the various sections closely together, thereby completing and holding the mold in assembled form. By releasing the'projections 6 from the hooks 4 the various sections may be separated and the mold disassembled. The interior mold A isof similar or duplicate construction, and specific description thereof is not deemed necessary, nor are detail views of the construction or arrangement of the couplings essential, the same being similar to those for the exterior mold,

which are fully shown in Figs. 3, 4, and 5.

For dividing the wall and forming the two concentriewalls as above mentioned two molds are necessary, one for forming the inner surface of the outer wall and the other for forming the exterior surface of the inner These molds are shown in their adwall. just-ment or assembled position in Fig. 1. and partially in Figs. 2 and .6. The mold for forming the interior surface of the outer wall is designated by B, and the mold for forming the exterior surface of the inner wall is designated by C. a series of a rcuate sections arranged to be set edge to edge, and thereby form the assembled molds. .llach section of the mold C has bearings, Fig. 7 near each edge in which is mounted a rod or shaft 8, said rods having ioo handles or levers 9 upon their u per ends, so that said rods or shafts may lie turned in their bearings.

The sections of the mold B carry cams 10,

which project toward therods or. shafts 8. 105 Matching said cams on the shafts 8 are pro-- jections 1 1, which'whcn the mo ldsare assembled one within the other and the shafts/8 are ,turned rub against the earns 10, and thereby compress the inner mold C ande rpand the 11c Each of these molds consists of 9 10- mag be released asabove describ o 1 outer mold B, causing the said molds to com- 5. A mold, comprising a series of arcuate" press the material which is placed between sections adapted to fitedge to edge, arod cars' ustment or them and the inner mold 8 and the outer or exterior mold, which molds are left in this adosition until the cement or other materia ,hardens, whereupon they may be removed by turning the shafts 8 to release the projections 11 from the cams 10. The exterior molds and the'interiolr' mold A r upholdin the sections of the molds B and C, I provi e rods 12, adapted to pass through holes in theupper edges of the vari- 'ous sections and extend over-the upper surr5 fdoe of the wall,'so that when the sections are released or while they-are being assembled 'they'canno't dropdown between the two concentric walls. Y

' I have described and illustrated my invenzo tion in itspreferred form, and intended use.

I am aware, however, that there may be variations within not restrict 'myse'l to specific features.

Having described my invention, what I 2 clairn, and desire to secure by Letters Pat ent, 1s- 1. A series of molds for forming annular concentric walls, consisting of an outer niold arranged to encircle the outerwall, and an '30 inner r'nold to be'within the inner wall, in

combination with two annular concentric molds intermediate of. the outer and inner molds, and devices carried by said intermedh ,ate 'rnolds pperable v3 5 compressing the other thereof,- substantially for expanding one and.

2. Arnold, comprising a series of dgewiscabutting sections, rods and hooks on said sections to engage wlth each other, levers for 4 turning the rods, and can son the rods in position to engage the hooks, in combination with a second mold adapted to stand parallel with the fir'st-named n old, substantially as described! 3. A serie of molds for forming parallel walls, comprising two molds each eonfposerl of a series of separable sections for confining both walls, couplings for uniting said sections, two intermediate 5 tioned between the first-marred 'ntolds, one

or more rods supported by said intermediate 4 molds and nteqfis in connection with said rod or' rm s for spacbrgsaid iz'rtermediate n'olds apart, substantiallv as specified.

5S 4. A seriesof ntolds for forming two walls,

- conprisirg an outer ntold conposez'l of a series of sections, n'eans for uniting 'said sections, an inner n'old composed of as'eries of sections, nteans for uniting said sectiors, two

"II.Ol(lS intermediate of the outer and inner molds, a lever or handle supported byone of said mterxrediate irolds, an'd nearzs con- 'towarc to cooperate, respectively with said 'outer' and inner n'oldsyand series ofedgewise-abuttingsections and meehv molds adapted to be posi-- trolled by said handle for spacirg said inter-- mediate molds apart, substantially as deried neareach side of each alternate section,

engage with saidfcanls.

6. Aset of molds, comprising in combina tron an outer. mold and an inner-mold each composed of a series of-sections, couplingsfor lockin thesections, of each mold one to another, evlces in connection with the eoup'-.

lings o )erable to draw-the adjacent sections 'towar each other, two intermediate molds to cooperate, respeetivelv, with-said outer and innermolds, and lrecharfisnrcarried-by said So intermediatenzolds operable for expanding the oneandcompressing the other, substantially asspecified. i

- 7. A set of n'tolds,.coniprisin ihpombination an outer and posed of a series of sectrons,..conplings for cking the sections of each: mold-one to'-an-' i other, devices in connection -with the coup:

lings o erable to draw the adjacent sections i each 'amnprisingra anism earr edjby saidinternz'ediate molds op erable to adjn-s't them in proper-position an 9; 'ative to said outer d inner molds,"substan tially as specified v 1 8. A set of molds 'foriorming, two parall walls, comprising in combination two rrgolds each composed 'of'a seriesof -s ections,--'coup-. lings for uritin said sections, nzean's m con nection with t co6perate','res pectively, withthe first-named each other, two intermediate molds 01 e .couplirgs' fondrawi Q s sections together, twointermediate n10 dsto abutting sections, rods and hooks on said sec-' tions to engage with each other, leversfortrrning the rods, and dams on the rods in position to engage the hooks, substantially as specified.

10. A in: old, comprising aseries of edgewi'se abutting sections, rods and books on said sections to engage with each.- other, levers for turnirg the rods, and can s on the rods toen- .gage the hooks when, the rods are turned, in

coxrbitatio'n with a eooperatirg nold, and "ears for holdiL'g it in. proper relation to the first-named mold. In testimony whereof I hereto alligt my signature in the-presence of two witnesses.

4 JOHN V. ROLAND. [r.. s.] W 12.058052? v F. J. MCCASLIN, J. D; RIPPEY. 

